Just as we became content with Diet Coke and Mentos, YouTuber CrazyRussianHacker stepped up the game. He took a two liter of regular Coke, poured some liquid nitrogen on top and turned the bottle upside down. In a matter of seconds, the bottle shoots out of his hand from the pressure. Find an effective way to aim the two liter, and you've got a very interesting plastic rocket in the making.